Win.Trojan.Surabaya-2 — Office (OLE) malware analysis

Static analysis result for SHA-256 e8045f5f91f43de1…

MALICIOUS

Office (OLE)

8.0 KB First seen: 2012-06-14
MD5: 83256706f59f873f95d35502207eb125 SHA-1: a90c9674ec04787a8ff1fa47a404da4e50bf9378 SHA-256: e8045f5f91f43de17db225a58a4530bd0d3fbfdb74c408238dcfe651b5961214
100 Risk Score

Malware Insights

Win.Trojan.Surabaya-2 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic

The file exhibits characteristics of a legacy WordBasic macro virus, specifically identified by the 'RSN MACRO VIRUS' marker and the ClamAV detection name 'Win.Trojan.Surabaya-2'. The document body contains numerous macro-related keywords and function names like 'AutoOpen', 'FileSaveAs', and 'Autoexec', strongly suggesting that the primary attack vector involves the execution of malicious macros embedded within the document. The presence of these elements indicates a high likelihood of a macro-based malware infection.

Heuristics 2

  • ClamAV: Win.Trojan.Surabaya-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Trojan.Surabaya-2
  • Legacy WordBasic macro-virus markers high OLE_LEGACY_WORDBASIC_MACRO_VIRUS
    OLE Word document contains legacy WordBasic auto-execution macro markers such as AutoOpen plus ToolsMacro/MacroFile/fileMacro/globMacro or named historical macro-virus strings. These old Word 6/95 macro forms are not exposed as a modern VBA project, so normal VBA source extraction can miss them.